<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <EditTextPreference
        app:key="userToken"
        app:title="@string/usertoken_title"
        app:useSimpleSummaryProvider="true" />
    <EditTextPreference
        app:key="serverAddress"
        app:title="@string/server_address"
        android:defaultValue="https://api.ec.tnkv.ru/"
        app:useSimpleSummaryProvider="true" />

</PreferenceScreen>